Fountain pen



B. A. GODEK FOUNTAIN PEN Filed'oct. 6, 1932 BoLsLAs ANDRE" GooeK ATTORNEY Patented Oct.- 24, 1933 fumrsb STATES FOUNTAIN PEN v Boleslas Andi- Godek, Paris, France Application October 6, 1932, Serial No. 636,554,

and in France November I, 1931 I Claims.

The fountain pens in common use are opaque as a general rule, and for this reason it is somewhat difiicult to find out how much ink they contain, and hence it frequently happensthat, when 5 the fountain pen is to be used,- it will suddenly cease to operate, as theink is-exhausted.

Fountainpens are now employed which are filled by means of a medicine-d'ropperjand c'om-' prise two supplies of ink, one of which forms an emergency supply. ,iOther pens are provided with two ink chambers adapted for automatic filling, while others comprise an air chamber which serves only as a suction device. However, all such types of pens have certain drawbacks.

'In the first case mentioned, the pen portion must be unscrewed and placed at the other end of the fountain pen, and in the other cases, the capacity is much reduced The emergency supply is taken from the amount which normally feeds the pen, and further, when theink is transferred from the emergency chamber to themain or normal chamber, this produces a stream of ink which may splash upon the user or upon sur-. rounding papers, due to the ink which escapes through the feeding duct leading to the nib.

fThe present invention has for its object to obviate all such drawbacks, by the use of a fountain pen adapted for automatic filling, and it is char-, acterized by the following features. i

(a). The emergency or reserve supply of ink constitutes an addition, and is not taken from the supply in the main chamber, the supply of ink being contained in an elastic sack under suit,-

able control, thus providing for the filling of the main chamber as well as for the filling of the re-' serve chamben r 1 (b) The total capacity exceeds that of the known fountain pens provided with an elastic sack, but withbut increasing the external size of 40 the fountain pen. I

(c) The use of aplu'g adapted to separate the mainchamber from the auxiliary or reserve chamber, provides for an economical construction, and the device can be more readily taken apart. I v

(d) The manipulations for the transfer of the' ink from one chamber to another can be effected without any danger of splashing, by the use of a device for breaking up thestream of .ink, which may optionally form part ofthe aforesaid plug.

The invention further'relates to improvements which assure, inthe case of a fountain pen comprising a reserve supply in which the-filling is effected by the usual means, the free discharge, to the exterior, of the air containedin an elastic 1 part of theplug. The strapserves to withdraw 'level n which. is shown by .thedotted line, the

example an embodiment of the invention.

Fig. 1 is a lengthwise section of j-the fountain pen. Fig. 2 shows a section of the fountain pen comprising a lever device controlling the pocket. Fig. 3 is a\ partial view of a modification on a larger scale. Fig. 4 shows in sectional view the flexible sack.

The main body a of the fountain pen consists of a hollow cylinder, and it is provided with a cylindrical pen section member b which is maintained by friction in said body, also with a cylin-' drical feed member 0 comprising striated or toothed parts for the circulation of the ink, and with a nib-d,

The inserted part of the pen section b preferably carries an elasticpacking member e, known per se, thus forming a leakless joint, and the outer end 'of the pen section has preferably a flaring shape, as shown at ,F. r

The elastic sack a is mounted on a plug h, an

a rubber ring i surrounding the. said recipient chamber serves as an elastic packing. Thewhole is mounted by friction in the main body a. Obviously, the thickness of sack a itself may also ,serve' to make the device leakless, and in event the plug will have a larger diameter. The-said plug, which preferably consists of ebonite, is pierced with a small orifice 7' leading to a recess I: provided by a strap 1 which forms the plug and the sack by means of a hook, and also to breakup the of ink when it is delivered into the recipient 'm, thus preventing the ink from splashing to the outside. r V

Thesaidfountain pen is filled in the same 7 manner as an ordinary fountain pen with elastic sack but this is effected by two operations.

After the first filling, the ink enters as far as capacity of the recipient m preferably exceeding the suction capacity of the pocket g. The foun-' tain pen. isjthe n turned with the nib upwards, and'in this position the level of the ink is shown by the dotted line a. Bycompressingthe sack,

the air thus expelled will pass through this ink and will enter the space between the dotted line n and the cylinder 0, thusipreventing the ink from splashing to the outside, and the air is ex-j Pelled to theexterior;

- After the air has been thus expelled, the pen is dipped into a bottle of ink, and is'then filled. The ink contained in the recipient m thus enters the sack g and forms a reserve supply of ink,

while another quantity of ink enters the recipient m in order to feed the nib of the pen.

The total amount of ink which is thus stored up is about per cent more than what is contained in a fountain pen of the same size,of a known type, and this aifords a great advantage.

When the ink in the recipient m is exhausted,

the sack g is compressed, and the reserve supply which it contains is thus delivered to the recipient. This is carried out with the pen in the vertical position with the nib upward then tuming part of a frame 0 for the slot 0 in the main body of the pen a. This lever acts upon a sack presser plate 1' controlling the sack g, and carries a stop q by which the lever will be held in position when the stop makes contact with the edges of the slot. In the modification repre-' sented in Fig. 3, the lever p is further provided with bosses p which slightly contact with the sides of the slot provided in frame 0 for receiving said lever when the lever is in the closed posi tion, and such bosses serve to stop the lever in said closed or normal position.

By the use of the whole or a part of the aforesaid devices, the operation is as follows.

The pen is filled by acting on lever 10; the lever p is pivoted outwardly, as shown'in Fig. 2, in

which case sack presser plate 1' flattens sack g;

The pen being now dipped into the ink, the lever is released, and due to the suction of sack g, the

. ink will rise into the recipient m. The pen is nowremoved from the ink bottle and isturned with the nib upward.

Due to"the stop q, or further, to the bosses 9 the lever 11, will be stopped before taking the normal position at the end of the stroke. The lever p is then forced into its recess in body a, and thus another suction effect will be produced by the return of the sack to its expanded position, and hence the ink in the channel which serves to feed the ink to the nib will enter the recipient m. At this time, the lever p is operated, and the air which is still contained in the sack Q will be expelled, thus passing through the ink contained in the recipient m. The pen is again dipped in the ink, and the lever p is returned to the normal position.

Fig. 4 shows the sack g, which is provided in v the interior with a reinforcing ring h cemented to the sack or formed in one with the same, the

said ring consisting of flexible rubber. Into the aperture 1' of the ring h is inserted. a plug h" which serves to break up the stream. In this manner, the device can be readily asembled, and further the pocket is well secured in position, due

to the expansion of the reinforcing ringh when the plug h is inserted.

Obviously, the said forms of construction are susceptible of various modifications without departing from the spirit of the invention, and in ply chamber provided with a pneumatic filling I device and located at the rear of the said main recipient, a partition separating these two chambers and pierced with a capillary orifice, and a stream-breaking device situated opposite the said orifice and in the said main recipient.

2. A fountain pen adapted for automatic filling bymeans of an elastic chamber, comprising, in combination, a rigid main recipient situated at the rear of the pen nib, an elastic chamber serving as a reserve supply chamber and located at the rear of the said main recipient, a partition separating these two chambersand pierced with a capillary orifice, and a stream-breaking device situated opposite the said orifice and in the said main recipient.

- '3. A fountain pen adapted for pneumaticfill ing, comprising, in combination, a main recipient situated at the rear of the pen nib, a reserve supply chamber provided with a pneumatic filling device and located at the rear of said main recipient, a controlling element for the-said filling device, means for the temporary stopping of said controlling element before the end of the complete filling, a partition separating these two chambers and pierced with a capillary orifice, and a stream-breaking device situated opposite the said orifice and in the said main recipient.

4. A fountain pen adapted for automatic fillingby means of an elastic chamber, comprising, in combination, a rigid niain recipient situated at the rear of the pen nib, anelastic sack serving as a reserve supply chamber and located at the rear of the said main recipient, an element for controlling the compression and expansion of said elastic chamber, means for the temporary stopping of said controlling element before the complete expansion of the elastic chamber, a partition separating these two chambers and pierced with a capillary orifice, and a stream-breaking device situated opposite the said orifice and in the said main recipient.

5; A fomitain pen comprising in combination a pen section, a main recipient connected with said pen section, a reserve supply chamber, pneumatic filling meansin said chamber, a partitionbetween said chamber and said recipient provid- -ed with a conduit of small cross section, and

means in said recipient for breaking the jet of ink from said chamber into said recipient.

BOLESLASANDRE GODEK. 

